Home / 2,185,521.30-3,281,234.40-1,388,359.80

Finding the Fourth Proportional to 2,185,521.30, 3,281,234.40 and 1,388,359.80

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Solution

The fourth proportional to 2,185,521.30, 3,281,234.40 and 1,388,359.80 is: 2,084,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,521.30 : 3,281,234.40 = 1,388,359.80 : x
  2. Step 2: Convert to fraction form
    2,185,521.30/3,281,234.40 = 1,388,359.80/x
  3. Step 3: Cross multiply
    2,185,521.30x = 3,281,234.40 × 1,388,359.80
  4. Step 4: Simplify right side
    2,185,521.30x = 4,555,533,935,337.12
  5. Step 5: Solve for x
    x = 4,555,533,935,337.12/2,185,521.30
  6. Step 6: Final answer
    x = 2,084,415.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.